<!doctype html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'" />
    <meta http-equiv="X-Content-Security-Policy" content="default-src 'self'; script-src 'self'" />
    <title>Electron</title>
  </head>
  <body>
    <h1>Hello Electron</h1>
  </body>
</html>
